CVE-2020-10733 : Security Advisory and Response

PostgreSQL Windows installer versions 9.5 - 12 are affected by a vulnerability that allows an attacker to execute arbitrary code with administrative rights.

Understanding CVE-2020-10733

The vulnerability in PostgreSQL's Windows installer can be exploited by an attacker to execute unauthorized code with elevated privileges.

What is CVE-2020-10733?

The Windows installer for PostgreSQL versions 9.5 - 12 invokes system executables without fully-qualified paths, allowing an attacker to execute arbitrary code with administrative rights.

The Impact of CVE-2020-10733

The vulnerability enables an attacker to execute malicious code with the installer's administrative privileges, potentially leading to system compromise.

Technical Details of CVE-2020-10733

The technical aspects of the vulnerability in PostgreSQL's Windows installer.

Vulnerability Description

The installer invokes system executables without fully-qualified paths, allowing local privilege escalation.

Affected Systems and Versions

Affected versions: PostgreSQL 9.5, 9.6, 10, 11, 12

Exploitation Mechanism

Attacker with permission to add files to specific directories can exploit the installer's behavior to execute arbitrary code.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2020-10733.

Immediate Steps to Take

Avoid running the installer in directories where untrusted users can add files.
Regularly monitor and restrict permissions on directories where the installer loads.

Long-Term Security Practices

Implement least privilege access controls to limit the impact of potential attacks.
Conduct regular security audits to identify and address vulnerabilities.

Patching and Updates

Update PostgreSQL to a patched version that addresses the vulnerability.